# bifrost vs mem0
_Agent Infrastructure · independent comparison_

> bifrost and mem0 are both open-source agent infrastructure you can self-host for free. mem0 has wider GitHub adoption — 64k stars vs 7.5k. Neither is universally better — pick by fit.

## Side by side

**bifrost**
- Open source · Infrastructure · 7.5k★ · Go · Apache-2.0 · active 7 days ago
- [listing](https://agentsearchengine.app/agents/bifrost) · [official](https://www.getmaxim.ai/bifrost)

**mem0**
- Open source · Infrastructure · 64k★ · Python · Apache-2.0 · active 8 days ago
- Best for: Adding a persistent memory layer to agents across sessions and users.
- Avoid if: You only need simple conversation history in a single session.
- [listing](https://agentsearchengine.app/agents/mem0) · [official](https://mem0.ai)

## Key differences

- mem0 has wider GitHub adoption — 64k stars vs 7.5k.
- bifrost is written primarily in Go; mem0 in Python.

## Which to choose

**Choose bifrost if:** your team works primarily in Go.

**Choose mem0 if:** Adding a persistent memory layer to agents across sessions and users.

## FAQ

**What's the main difference between bifrost and mem0?**
mem0 has wider GitHub adoption — 64k stars vs 7.5k.

**Is bifrost or mem0 better?**
Neither is universally better. bifrost is the stronger fit for teams working primarily in Go; mem0 for Adding a persistent memory layer to agents across sessions and users. Use the side-by-side specs to decide by your own constraints.

**Is bifrost or mem0 free?**
bifrost is free to run and self-host; mem0 is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.

**Which is more popular, bifrost or mem0?**
By GitHub stars — a proxy for open-source adoption — mem0 is ahead (64k vs 7.5k). Stars measure attention, not necessarily the better fit for you.

---
Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/compare/bifrost-vs-mem0